EP0379106B1 - Anschlussverbindungsstück - Google Patents

Anschlussverbindungsstück Download PDF

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Publication number
EP0379106B1
EP0379106B1 EP90100685A EP90100685A EP0379106B1 EP 0379106 B1 EP0379106 B1 EP 0379106B1 EP 90100685 A EP90100685 A EP 90100685A EP 90100685 A EP90100685 A EP 90100685A EP 0379106 B1 EP0379106 B1 EP 0379106B1
Authority
EP
European Patent Office
Prior art keywords
clamping
arms
collet
actuating
piece according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90100685A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0379106A3 (de
EP0379106A2 (de
Inventor
Kurt Dipl.-Ing. Stoll
Herbert Köngeter
Hans Prof.-Dr. Ing. Scheurenbrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP0379106A2 publication Critical patent/EP0379106A2/de
Publication of EP0379106A3 publication Critical patent/EP0379106A3/de
Application granted granted Critical
Publication of EP0379106B1 publication Critical patent/EP0379106B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0927—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling

Definitions

  • connection connector for connecting line-shaped components suitable for guiding a flow medium, such as pressure medium lines, pressure medium hoses or the like to one another or to another, in particular pneumatic component, with a holding part which contains at least one connection opening into which a line-shaped component to be connected can be detachably inserted with an insertion end is insertable, with a collet arranged in part within the connection opening and, when the insertion end is inserted, arranged on the circumference of the corresponding line-shaped component, which has two diametrically opposed collet elements, each with a clamping arm arranged in the connection opening and, in extension, an actuating arm with an outside the connection opening arranged actuating section, all collet elements via a egg in the area between the clamping arms on the one hand and the actuating arms on the other hand arranged annular connecting section are integrally connected to one another in such a way that the clamping arms when moving the actuating arms in the direction of the inserted line-shaped component from a
  • a connector of this type emerges from DE-B-26 22 269. It has a holding part with a continuous channel that widens at one end to a connection opening that is closed by a cover. The latter has an insertion opening through which the insertion end of a line-shaped component can be inserted.
  • a collet arranged partially inside the connection opening, the inserted plug-in end can be detachably fixed relative to the holding part by pressing clamping parts of the collet against the outer circumference of the plug-in end in a clamping position. By pressing actuating arms of the collet, the insertion end is released and the line-shaped component can be removed.
  • connection connector is relatively wide, for which the actuating arms projecting radially outwards through lateral openings of the holding part are responsible.
  • a cover which removably closes the connection opening is necessary in order to enable the collet to be mounted on the holding part at all.
  • the number of components required is therefore relatively high for a connector and the assembly of the collet and the cover requires a considerable amount of time.
  • a Omitting the cover is practically not possible because it is required as a stabilizing component. On the one hand, it prevents a plugged-in line from kinking and, on the other hand, it forms a holding element with respect to the collet which would fall out of the connection opening if the cover were not present.
  • the collet is slightly axially displaceable relative to the holding part, even in the clamping position of the clamping parts, since the actuating arms reach through the holding part with axial play in order to be radially pivotable.
  • the insertion end can also be damaged, since the clamping parts are strongly pressed into the wall of the insertion end due to the bending back of the actuating arms.
  • the insertion end moves axially inwards, this can even trigger a release process of the collet because of the contact between the actuating arms and the holding part. Since the collet essentially only consists of a slightly curved leaf spring, the actuation forces should be relatively high, which reduces the ease of use.
  • connection connector according to the type mentioned at the outset, which has compact radial dimensions with a low-arm construction and simple assembly and, with low actuation forces, ensures a secure hold of the inserted insertion end even when pressure is applied.
  • the collet with its actuating parts protrudes on the insertion side from the connection opening of the holding part, the actuating parts, viewed in the clamping position of the associated clamping arms, being arranged to allow a movement radially inward with actuating distance to the circumference of the inserted line-shaped component, and that the connecting portion, which is designed as an annular body, has an arcuate cross-sectional shape and forms both a holding part for captively holding the collet on the holding part and the pivoting range for the clamping arms which can be moved between the clamping position and the release position, with it being form-fitting in or on a corresponding holding recess or a projection of the holding part sits and the actuating arms and clamping arms are arranged at the end regions of the mutually opposite arc sections of the ring body.
  • the connecting portion which is designed as an annular body, between the clamping and actuating arms has a double function in that it acts both as a holding part for releasable mounting relative to the holding part and also forms the movement bearing for the pivoting movement of the clamping arms and the actuating arms.
  • the ring body brings about a positive, secure fixation of the collet.
  • the radial actuation distance between the actuation parts and the circumference of the respectively inserted line-shaped component ensures sufficient space for the reliable making of a change between the clamping position and the free position, in conjunction with the arcuate cross-sectional contour of the ring body, which, with low actuation forces, provides a resilient transmission of the pivoting movement between the Operating arms and the clamping arms guaranteed.
  • DE-A-31 43 015 already shows a connector which is equipped with a holding device with actuating arms and supporting arms connected to one another via an annular connecting section. It is true that the support arms are moved between their effective and their inactive position in a manner similar to that of the collet according to the invention radial movement of the actuating arms.
  • the support arms are not suitable for exerting radial clamping forces on an inserted line, but for their functionality they require an annular radial projection which must be integrally formed on the line. This stands in the way of universal applicability.
  • the annular connecting section is linearly web-shaped in cross-section, so that, among other things, higher actuation forces can be expected.
  • connection connector contains a holding part 1, which contains at least one connection opening 2, into which a line-shaped component 3 to be connected can be detachably inserted with an insertion end 4.
  • line-shaped component is to be understood here as meaning pressure medium hoses, pressure medium lines or similar bodies with, in particular, cylindrical outer contour in the region of the insertion end 4.
  • connection opening 2 is from one end region of a through-channel 5 which runs linearly through the holding part 1 formed, which on the other hand opens out on a mounting side 6.
  • the holding part 1 can be releasably attached to a component, not shown, for example a valve, a cylinder or the like, in order to connect the through-channel 5 and the line channel 7 of the inserted line-shaped component 3 to this component.
  • the holding part area assigned to the mounting side 6 is therefore designed in the exemplary embodiment in the manner of a threaded connector 8 which can be detachably screwed into a corresponding threaded opening of the component (not shown).
  • the cylindrical outer contour of the holding part section 9 following the threaded connector 8 can be designed such that a screwing tool can be attached, as in the illustrated embodiment.
  • the connector can also be used as a line coupling be formed, in which case the threaded connector 8 is omitted and also the assembly-side opening area of the through-channel 5 is designed as a connection opening for receiving the insertion end of a line-shaped component 3.
  • the holding part with a branched through channel 5, in which case a connection opening or a mounting side can be assigned to various of the orifices.
  • a collet 10 is held, which partly protrudes from the connection opening 2 on the insertion side 13 of the holding part 1 opposite the mounting side 6.
  • the collet 10 is located in the region of the outer circumference of this component 3, as illustrated in FIG. 2.
  • the collet 10 has a plurality of collet elements 14, 14 ', in the exemplary embodiment two pieces, which are diametrically opposed to one another are arranged opposite one another in the receiving opening 2. They each extend essentially - apart from a few bends or the like - in the longitudinal direction 15 of the connection opening 2 and are distributed along the circumference of the connection opening 2.
  • Each collet element 14, 14 ' contains a clamping arm 17, 17' which is located entirely inside the connection opening 2. Furthermore, each collet element 14, 14 'has an actuating arm 18, 18' which protrudes from the connection opening 2 on the insertion side 13, the protruding area containing an actuating part 19.
  • the individual actuating arms 18, 18 ' are each aligned in an axial extension to the associated clamping arm 17, 17', and the two arms of a respective collet element 14, 14 'are firmly connected to one another via a connecting section 20.
  • the clamping arms 17, 17 ' can be moved between a clamping position shown in FIG. 2 and a release position indicated in broken lines in FIG. 3.
  • Every clamp arm 17, 17 ' has, in the exemplary embodiment, a clamping section 21 which is provided on the free end region pointing into the interior of the connection opening 2 and which, in the tensioned position, works radially inward with respect to the longitudinal axis 15 against the circumference of an inserted insertion end 4.
  • the two clamping parts 21 are thus brought closer together and further away from the circumference 16 of the connection opening 2.
  • the release position the distance between the two clamping parts 21 is increased, they are each approximated to the adjacent area of the opening circumference 16 and allow the insertion end 4 to be removed easily by pulling it out.
  • the collet elements 14, 14 ' are designed such that the clamping arms 17, 17' automatically assume the clamping position when the insertion end 4 is inserted, which they expediently maintain even when the insertion end 4 is removed.
  • An advantage of the invention lies in the simple operation of the collet 10. Because the clamping arms and operating arms of each Collet elements 14, 14 'are connected to one another such that when the actuating arms 18, 18' are moved radially inward in the direction of the longitudinal axis 15, the clamping arms 17, 17 'are moved from the clamping position into the release position. They maintain this as long as the actuating arms 18, 18 'are kept pressed.
  • the collet is formed in one piece so that it at least largely encloses an insertion end that is seated in the receiving opening. This simplifies both assembly and operability.
  • the collet 10 gives the impression of an annular component.
  • This impression comes from an annular body 23, which all the collet elements and the respective two arms 17, 18 and 17 ', 18' of the collet elements 14, 14 'which form a connecting section 20 of the collet 10 which interconnects one another.
  • the annular body 23 is arranged coaxially with the connection opening 2, so that the two arms of the respective collet element extend from it in opposite axial directions.
  • the annular body has a cross-section - that is, in a section along a plane extending axially and radially with respect to the longitudinal axis 15 - an arcuate shape in the manner of a U or V, the opening of the annular space 25 surrounded by the arc 24 being radially inward towards the plug Inserting end 4 points.
  • clamping and actuating arms 17, 18 and 17 ', 18' of a respective collet element 14, 14 ' are integrally formed on the opposite end regions of the arc 24, ie in the region of the circumferential edges of the ring body 23 adjacent to the opening of the annular space 25.
  • the clamping arms 17, 17 'and the actuating arms 18, 18' are curved in the circumferential direction of the ring body 23, the radius of curvature also being able to be larger or smaller, at least in the areas remote from the ring body 23.
  • the curvature has the advantage that the clamping parts 21 can extend over a larger circumferential area of the insertion end 4, so that better clamping is achieved.
  • the greatest possible range of movement for the actuating parts 19 is achieved compared to the inserted line-shaped component 3.
  • connection area to the ring body 23 in total less than that of the ring body 23 itself. This results in the circumferential direction between the diametrically opposed arms relatively large arm-free areas 29, which are bridged only by sections 30 of the ring body 23.
  • the collet 10 is preferably captive and yet removable in the connection opening 2 of the holding part 1 held.
  • this is done by means of a snap or snap connection, the connecting section 20 or annular body 23 preferably forming a fastening part involved in this connection.
  • the holding on the holding part 1 thus takes place in the area of the connecting section 20 between the two arms 17, 18 and 17 ', 18' of a respective collet element 14, 14 '.
  • annular holding recess 32 corresponding to the outer contour of the annular body 23 is formed on the circumference 16 of the connection opening 2, in which the annular body 23 is seated in a form-fitting manner in the assembled state of the collet 10.
  • the connecting section 20 or ring body 23 is interrupted and open at a point between the two collet elements 14, 14 '.
  • the annular body 23 is now resilient and the gap width measured in the circumferential direction of the annular body 23 is selected so that when the gap width is reduced to approximately zero by the application of force from outside, the collet 10 can be inserted into the connection opening 2 without being obstructed by the annular body 23. If the ring body 23 reaches the position of the holding recess 32 when it is inserted, it snaps into it with a resilient widening and the collet 10 is fixed immovably in the axial direction 15.
  • the actuating arms 18, 18 'in the exemplary embodiment have a short section adjoining the ring body 23 with an approximately parallel course to the longitudinal axis 15, at which an inclined section 35 attaches, axially away from the holding part 1 and at the same time radially runs outwards in order to ultimately merge into the actuating part 19, which in turn extends axially.
  • the closure can be designed in the form of a bead.
  • the clamping arms 17, 17 ' also start on the ring body side with a short, axially extending portion 36, which is followed by an inclined portion 37 with an axially directed toward the mounting side 6 and radially outward course, which merges into an oppositely inclined second inclined portion 38, which also extends in the direction of the mounting side 6 but at the same time radially inward is directed to the longitudinal axis 15.
  • the end region of this second inclined part 38 represents the clamping part 21, on which, as shown, holding means 39 are arranged, which can dig into the wall of the insertion end 4.
  • it is a tooth following the curved clamping arm contour, which points radially inward and in the insertion direction in order to wedge against the insertion direction 22 in the wall of the insertion end 4 when the pull is exerted on the insertion end 4.
  • a plurality of teeth, individual teeth, toothings or the like can also be provided for the form-fitting support of the clamping process on the clamping section 21.
  • connection connector In this the position occupied by the collet 10 or one of its collet elements 14 in the clamping position of the associated clamping arm 17 is shown in solid lines.
  • the clamping section 21 works under pretension against the insertion end 4, which pretension is provided by an elastic resilient ring element 40 due to the resilient design of the collet and under certain circumstances, as will be explained later.
  • the annular body 23 fixed in the holding recess 32, together with the adjacent parts of the arms 17, 18, surrounds the insertion end 4, with some play being possible. In any case, there is radial play in the area between the clamping arm section 36 following the ring body 23 and the circumferential section 43 of the receiving opening 2 associated therewith.
  • each clamping arm 17, 17 ' is in several parts and consist of a plurality of clamping segments 48, 48' which are arranged next to one another in the circumferential direction of the connection opening and which, as in the exemplary embodiment, are expediently spaced from one another in order to be able to move independently of one another to guarantee.
  • each clamping arm consists of two clamping segments 48, 48 ', which can be produced, for example, by introducing a longitudinal slot into a previously one-piece clamping arm.
  • annular element 40 which surrounds the collet 10 in the region of the clamping arms 17, 17 ', is arranged in the receiving opening 2. It is expediently seated in a groove-shaped circumferential recess 49 in the connection opening 2. It has the shape of a hollow cylinder which is coaxially interposed between the clamping arm area and the associated peripheral area of the connection opening 2.
  • the ring element 40 consists of elastically resilient material, in particular material with rubber-elastic properties. Its dimensions and its position in relation to the clamping arms 17, 17 'is selected such that these are expediently additionally or exclusively forced into the clamping position by him when the operating arms 18, 18' are not actuated. As illustrated in FIG. 2, the ring element 40 takes the contour of the clamping arm side Clamping arms.
  • the ring element 40 can extend along a more or less large length section of the clamping arm area of the collet 10.
  • the arms of the collet 10 and in particular the entire collet is designed to be resilient.
  • the collet can be a one-piece bent sheet metal part made of stainless steel. It is advantageous if it is a resilient material, the use of spring steel or a resilient plastic material also being appropriate.
  • a sealing ring 50 which coaxially surrounds the inserted insertion end 4, is preferably arranged in the receiving opening, which can be designed as a lip ring to achieve a tight dynamic seal.
  • the drawing shows an advantageous embodiment in which it is formed in one piece with the ring element 40 and in the axial direction adjoins the free end regions of the clamping arms 17, 17 'in an axially projecting manner. It is expedient to use a sealing ring overall for this combination part, so that the ring element 40 is part of the sealing ring.
  • connection connector according to the invention is very short and the collet has only small radial dimensions, so that small diameter dimensions can be realized with an optimal flow cross section.
  • the connector according to the invention is particularly suitable for line-shaped components with insertion ends made of plastic material, although good clamping is also achieved with other materials.
  • the ring member 40 be added that it can also be a fitting, the inner circumference of which is already adapted to the bent contour of the clamping arms.
  • the ring body 40 - to which the sealing ring 50 is preferably formed in one piece - has in particular the shape of a hollow cylinder with a wall thickness which decreases starting from the axial end regions in the direction of the longitudinal center, the essentially kink-shaped central region of the smallest wall thickness having the kink region between the the two inclined sections 37, 38 of the clamping arms 17, 17 'come to rest (cf. also FIG. 3).
  • the connector in another component or a housing or the like. which can be integrated or molded onto it.
  • the screw-in part 8 is omitted, and a component or housing channel immediately adjoins the through-channel.
  • connection connectors shown in FIGS. 4 and 5 corresponding components have been provided with identical reference symbols.
  • connection connectors shown in FIGS. 4 and 5 corresponding components have been provided with identical reference symbols.
  • only one half of the connection connector lying above the line of symmetry is shown in longitudinal section.
  • FIGS. 4 and 5 differ from the previous embodiments by a somewhat different arrangement of actuating arm 18 and clamping arm 17 in the respective collet element 14, 14 '.
  • the actuating arm 18 has already been displaced radially outward in relation to the associated clamping arm 17 in the region adjoining the swivel axis region 52.
  • the cross section of the connection opening 2 in the area axially adjoining the holding recess 32 counter to the insertion direction 22 is enlarged compared to the area adjoining the axially inside.
  • the arc section 45 of the connecting section 20 assigned to the actuating arm 18 turns out to be somewhat shorter than the arc section 47 assigned to the clamping arm 17.
  • the connecting section 20 can be a ring body, in particular slotted, or it can be just a piece along the circumference of the insertion opening 2 extending arch element.
  • a holding recess 32 in the interior of the insertion opening 2 has been dispensed with.
  • the clamping arms 17 are brought axially out of the connection opening 2 counter to the insertion direction 22 in order to pass into the associated actuating arm 18 within the framework of an essentially S-shaped connecting section 20 '.
  • the actuating arm 18 is formed at one end and the clamping arm 17 at the other end of the S area.
  • the S-bend 54 which is arranged radially further inward, is attached or snapped axially onto the insertion-side end region 55 of the holding part 1, which end region is designed in the manner of a projection and can only extend over part of the circumference of the connection opening 2. Seen in the longitudinal section according to FIG.
  • the end region 55 is expediently rounded in accordance with the contour of the inner S-bend. If the actuating arm 18 is pressed radially inward, then the entire collet can move in the region of the connecting section 20 'relative to the end region 55, so that the clamping arm 17 which continues into the connection opening 2 is pressed radially outward.
  • the outer S-arm 54 and expediently also the inner S-arm 54 extend only a little along the circumference of the connection opening 2 and are, for example, web-shaped, the adjoining clamping arm 17 and / or actuating arm 18, in particular a larger circumferential extent can have.
  • material reinforcements or reinforcements can be provided in the area of the connecting sections 20, 20 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Supports For Pipes And Cables (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP90100685A 1989-01-19 1990-01-13 Anschlussverbindungsstück Expired - Lifetime EP0379106B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3901466A DE3901466A1 (de) 1989-01-19 1989-01-19 Anschlussverbindungsstueck
DE3901466 1989-01-19

Publications (3)

Publication Number Publication Date
EP0379106A2 EP0379106A2 (de) 1990-07-25
EP0379106A3 EP0379106A3 (de) 1991-03-20
EP0379106B1 true EP0379106B1 (de) 1993-04-28

Family

ID=6372384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100685A Expired - Lifetime EP0379106B1 (de) 1989-01-19 1990-01-13 Anschlussverbindungsstück

Country Status (3)

Country Link
EP (1) EP0379106B1 (enrdf_load_stackoverflow)
DE (2) DE3901466A1 (enrdf_load_stackoverflow)
ES (1) ES2039961T3 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007008208U1 (de) * 2007-06-08 2007-08-23 Alligator Ventilfabrik Gmbh Steckverbinder, pneumatisches Anschlussteil, pneumatische Verbindung
JP2019148324A (ja) * 2018-02-28 2019-09-05 トヨタ自動車株式会社 継手構造

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH278093A (de) * 1949-12-06 1951-09-30 W & M Ruefenacht Graf Schlauchkupplung.
FR1491388A (fr) * 1965-06-28 1967-08-11 Joint rapide pour tubes et tuyaux souples en matière plastique
US3711125A (en) * 1971-06-29 1973-01-16 Ford Motor Co Quick connect fitting for a hydraulic conduit
DE2611233A1 (de) * 1976-03-17 1977-09-22 Rolf Dieter Ing Grad Reubelt Schlauchverschraubung
DE2622269C3 (de) * 1976-05-19 1979-05-23 Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck Anschlußeinrichtung zwischen einem Kunststoffrohr und einem stationären Anschlußstutzen
US4508369A (en) * 1978-06-02 1985-04-02 Nycoil Corporation Releasable coupling device
DE3143015C3 (de) * 1980-10-29 1999-04-29 Donald Dekle Bartholomew Drehbare Schnellkupplung
US4332402A (en) * 1980-10-30 1982-06-01 General Motors Corporation Quick connect hydraulic coupling assembly
US4637640A (en) * 1985-02-27 1987-01-20 Aeroquip Corporation Push-in connect fitting
DE3525402A1 (de) * 1985-07-16 1987-01-29 Thyssen Plastik Anger Kg Schnellverbinder

Also Published As

Publication number Publication date
ES2039961T3 (es) 1993-10-01
EP0379106A3 (de) 1991-03-20
DE3901466C2 (enrdf_load_stackoverflow) 1991-03-14
EP0379106A2 (de) 1990-07-25
DE59001271D1 (de) 1993-06-03
DE3901466A1 (de) 1990-07-26

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